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path: root/wiki2texi.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
# Copyright (C) 2015 Sergey Poznyakoff
# 
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 3, or (at your option)
# any later version.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
# 
# You should have received a copy of the GNU General Public License
# along with this program.  If not, see <http://www.gnu.org/licenses/>.

from wikimarkup import *
from types import TupleType
from wikins import wiki_ns_re, wiki_ns
import re
import urllib

class TexiWikiMarkup (WikiMarkup):
    sectcomm = {
        'numbered': [
            '@top',
            '@chapter',      
            '@section',      
            '@subsection',   
            '@subsubsection'
        ],
        'unnumbered': [
            '@top',
            '@unnumbered',
            '@unnumberedsec',
            '@unnumberedsubsec',
            '@unnumberedsubsubsec'
        ],
        'appendix': [
            '@top',
            '@appendix',
            '@appendixsec',
            '@appendixsubsec',
            '@appendixsubsubsec'
        ],
        'heading': [
            '@majorheading'
            '@chapheading',
            '@heading',
            '@subheading',
            '@subsubheading'
        ]
    }

    sectioning_model = 'numbered'
    sectioning_start = 0

    def __init__(self, *args, **keywords):
        super(TexiWikiMarkup, self).__init__(*args, **keywords)
        if keywords.has_key("sectioning-model"):
            val = keywords["sectioning-model"]
            if self.sectcomm.has_key(val):
                self.sectioning_model = val
            else:
                raise ValueError("Invalid value for sectioning model: %s" % val)
        if keywords.has_key("sectioning-start"):
            val = keywords["sectioning-start"]
            if val < 0 or val > 4:
                raise ValueError("Invalid value for sectioning start: %s" % val)
            else:
                self.sectioning_start = val

        
    def __str__(self):
        str = ""
        for elt in self.tree:
            str += self.format(elt)
        return str

    def format(self, elt):
        if elt['type'] == 'TEXT':
            if isinstance(elt['content'],list):
                string = ""
                for s in elt['content']:
                    string += s
            else:
                string = elt['content']
            return string
        elif elt['type'] == 'TAG':
            return self.str_tag(elt)
        elif elt['type'] == 'PARA':
            return self.str_para(elt)
        elif elt['type'] == 'PRE':
            return self.str_pre(elt)
        elif elt['type'] == 'IT':
            return self.str_it(elt)
        elif elt['type'] == 'BOLD':
            return self.str_bold(elt)
        elif elt['type'] == 'LINK':
            return self.str_link(elt)
        elif elt['type'] == 'TMPL':
            return self.str_tmpl(elt)
        elif elt['type'] == 'BAR':
            return self.str_bar()
        elif elt['type'] == 'HDR':
            return self.str_hdr(elt)
        elif elt['type'] == 'REF':
            return self.str_ref(elt)
        elif elt['type'] == 'ENV':
            return self.str_env(elt)
        elif elt['type'] == 'IND':
            return self.str_ind(elt)
        elif elt['type'] == 'SEQ':
            string = ""
            for x in elt['content']:
                string += self.format(x)
            return string
        else:
            return str(elt)

    def str_tag(self, elt):
        if elt['tag'] == 'code':
            self.nested += 1
            s = self.format(elt['content'])
            self.nested -= 1
            if not s.endswith("\n"):
                s += "\n"            
            return '@example\n' + s + '@end example\n'
        elif elt['tag'] == 'tt':
            self.nested += 1
            s = self.format(elt['content'])
            self.nested -= 1
            return "@code{%s}" % s
        elif elt['tag'] == 'div':
            s = ''
            if 'args' in elt and 'id' in elt['args']:
                s += "\n@anchor{%s}\n" % elt['args']['id']
            s += self.format(elt['content'])
            return s
        else:
            s = '<' + elt['tag']
            if elt['args']:
                s += ' ' + elt['args']
            s += '>' + self.format(elt['content']) + '</' + elt['tag'] + '>'
            return s
 
    def str_para(self, elt):
        string = "";
        for x in elt['content']:
            string += self.format(x)
        return "\n" + string + "\n"

    def str_pre(self, elt):
        string = "";
        for x in elt['content']:
            string += self.format(x)
        if self.nested:
            return string
        if not string.endswith("\n"):
            string += "\n";
        return '\n@example\n' + string + '@end example\n'

    def concat(self, eltlist):
        string = ""
        for x in eltlist:
            string += self.format(x)
        return string
    
    def str_it(self, elt):
        return "@i{" + self.concat(elt['content']) + "}"

    def str_bold(self, elt):
        return "@b{" + self.concat(elt['content']) + "}"

    def nodename(self, elt):
        return self.format(elt) # FIXME
    
    def str_hdr(self, elt):
        level = elt['level']
        if level > len(self.sectcomm[self.sectioning_model]) - 1 - self.sectioning_start:
            s ="\n@* %s" % (self.format(elt['content']))
        else:
            s = self.sectcomm[self.sectioning_model][level - self.sectioning_start] + " " + self.format(elt['content']) + "\n"
            if self.sectcomm[self.sectioning_model][0] == '@top':
                s += "@node %s\n" % (self.nodename(elt['content']))
        return s + "\n"
        
    def str_bar(self):
        return "\n-----\n" # FIXME

    def str_ind(self, elt):
        return ("@w{ }" * elt['level']) + self.format(elt['content']) + '\n'

    def str_env(self, elt):
        if elt['envtype'] == 'unnumbered':
            string = '\n@itemize @bullet\n'
            for s in elt['content']:
                string += '@item ' + self.format(s['content']) + '\n\n'
            string += '@end itemize\n'
        elif elt['envtype'] == 'numbered':
            string = '\n@enumerate\n'
            for s in elt['content']:
                string += '@item ' + self.format(s['content']) + '\n\n'
            string += '@end enumerate\n'
        elif elt['envtype'] == 'defn':
            string = "\n@table @asis\n"
            for s in elt['content']:
                if s['subtype'] == 0:
                    string += "@item " + self.format(s['content']) + '\n'
                else:
                    string += self.format(s['content']) + '\n'
            string += '@end table\n'
        return string

    def str_link(self, elt):
        # FIXME: A very crude version
        arg = self.format(elt['content'][0])
        if len(elt['content']) > 1:
            s = map(self.format, elt['content'])
            text = s[1]
        else:
            s = None
            text = None

        if s:
            if s[0] == 'disambigR' or s[0] == 'wikiquote':
                return ""
            if len(s) > 1 and s[1] == 'thumb':
                return ""

        (qual,sep,tgt) = arg.partition(':')
        if text:
            return "@ref{%s,%s}" % (qual, text)
        else:
            return "@ref{%s}" % qual
    
    def str_tmpl(self, elt):
        return "FIXME: str_tmpl not implemented\n"
            
    def str_ref(self, elt):
        target = elt['ref']
        text = self.format(elt['content'])
        if text and text != '':
            return "@uref{%s,%s}" % (target, text)
        else:
            return "@uref{%s}" % target
    
    
        
    
    

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